Thierno Diallo
Thierno Diallo

Tech Lead and Senior Data Engineer

Actively looking · Member since 1 Nov 2026
Location
Paris, France
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Lead

About

Professional summary

I am a Tech Lead and Senior Data Engineer specializing in modern data platforms, cloud data architecture, and analytics engineering. My core focus is Snowflake, dbt, data modeling, AWS and Azure, orchestration, and CI/CD.

I build and modernize data warehouses and ELT pipelines for global organizations across hospitality, private equity, wine and spirits, agricultural commodities, and human resources. I work with both Data Vault 2.0 and Kimball dimensional modeling approaches.

I have hands-on experience designing scalable Snowflake and dbt solutions, including Snowpark, Streams, Tasks, role-based access control, testing, and deployment automation. I also develop high-throughput data components using Python, Java, SQL, T-SQL, Bash, and JSON.

I use Apache Airflow, Astronomer, Azure Data Factory, and cloud storage services to orchestrate cross-system and near-real-time data workflows. I have implemented data quality, master data management, historical tracking, entity matching, and deduplication capabilities.

I am experienced in infrastructure automation and delivery practices, including Terraform, Docker, GitHub Actions, GitLab CI, Azure DevOps, and dbt unit testing. I also support reporting and monitoring through Power BI and apply governance, security, FinOps, and release-management practices to data platforms.

Skills

24 capabilities

Tech stack & tools

Working toolkit

Data Stores

Development

Experience

Career history

Tech Lead and Senior Data Engineer Accor (Devoteam Snowflake Partner)

I lead a modern data stack migration for global hospitality reservations and stays data at Accor.

My work focuses on modernizing the data platform and supporting scalable analytics data capabilities.

Data Engineer Consultant Ardian (Silamir Group)

I worked on data quality improvement and Master Data Management initiatives for a top-tier private equity firm.

I supported data platform reliability and the quality of enterprise data used by the organization.

Data Engineer Consultant Pernod Ricard

I delivered analytical data warehousing capabilities for global wine and spirits operations. I built ELT pipelines with dbt Core and designed analytical models on Snowflake and AWS using Data Vault 2.0 and Kimball dimensional modeling.

I used Snowflake, including Snowpark, Streams, and Tasks, alongside AWS S3, Azure Blob Storage, Azure Data Factory, Azure SQL Server, OpenSearch, Python, Java, SQL, T-SQL, Bash, Terraform, Docker, Apache Airflow, Astronomer, GitLab CI, GitHub Actions, and Power BI. I implemented historical tracking with cryptographic hash keys, workflow orchestration, dbt testing, CI/CD, Snowflake RBAC automation, entity matching, deduplication, and monitoring dashboards.

Data Engineer Louis Dreyfus Company

I worked on an Enterprise Data Warehouse supporting international agricultural commodity trading.

My role contributed to enterprise data warehousing and analytical data capabilities for global commodity-trading operations.

BI and Data Developer Septeo Human Resources

I maintained and evolved a constellation data warehouse on Azure SQL Server. I engineered near-real-time incremental pipelines that ingested JSON files from Azure Blob Storage and authored performant T-SQL stored procedures orchestrated through Azure Data Factory.

I managed release pipelines and deployment cycles using Azure DevOps. I also designed star-schema data warehouse models in MySQL, built ETL jobs with Talend Open Studio, managed SCD Type 2 historical tracking, and delivered Power BI reporting with row-level security.

Education

Learning history

EPSI School of Engineering

Master, Information Systems, Enterprise Data Architecture

Master in Information Systems with a major in Enterprise Data Architecture.

Claude Bernard Lyon 1 University

Bachelor, Computer Science, Database Systems and Algorithms

Bachelor in Computer Science focused on database systems and algorithms.

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